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Finding the Fourth Proportional to 93,040.51, 139,560.78 and 22,919.80

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Solution

The fourth proportional to 93,040.51, 139,560.78 and 22,919.80 is: 34,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,040.51 : 139,560.78 = 22,919.80 : x
  2. Step 2: Convert to fraction form
    93,040.51/139,560.78 = 22,919.80/x
  3. Step 3: Cross multiply
    93,040.51x = 139,560.78 × 22,919.80
  4. Step 4: Simplify right side
    93,040.51x = 3,198,705,165.44
  5. Step 5: Solve for x
    x = 3,198,705,165.44/93,040.51
  6. Step 6: Final answer
    x = 34,379.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.